
          Cambridge Thursday. 


 My Dear Doctor


 I received yours, with Engelmann's letter, 
 inclosed, and, though I have little to say, I draft this 
 line to reach you before the holidays begin, partly 
 because I am a Mem. [Memoir] for Hastings to inclose, relative 
 to Journals that have not come to hand. 
 I have received from Engelmann the beginning 
 of the set for me of Fendler's St. [Santa] F� plants. 
 [crossed out: The] viz. from Rannunc. [Ranunculaceae] to Rosaceae inclusive. 
 They plainly show that St. [Santa] Fe is very elevated, 
 and has the general vegetation of the Rky. Mt. [Rocky Mountain] plains 
 and adjacent. There are several N. [New] England plants 
 among them, such as Potentilla Anserina, [Anclauchus?], 
 &c. and almost all are familiar forms. 


 The specimens are very complete and beautiful! 


 The Manual is printed to the end of the Hepaticae, 
 p. [page] 696. Two pages of addition & the Index 
 will make about 712 pages. The Introductory matters
 now printing will add 50 more at least, making the 
 vol. [volume] just a thick as can possibly be got within covers. 
 I am obliged therefore to omit the Lichens, which 
 Tuckerman has prepared for me. I am arranging to 
        